The problem is, the anti-vaxxers don't care about the science at all. Either they do not understand it (likely) or they do not care about it (more likely.) They argue based on emotion and anecdote, not logic and facts. To respond with logic and facts won't get you anywhere, because that is not the sort of argument they will listen to or that makes sense to them.
Also, apparently, vaccines can also cause a person to become trans.